Phylogenetics: see Singhal et al. 2017 and 2018 for a phylogeny of Australian sphenomorphine skinks.

Morphology: digits: 5, toes: 5 (Singhal et al. 2018, Cogger 2014)

Etymology

Etymology (genus): The name refers to the Tumbunan zoogeographic division, which includes (among other regional faunas) the sub-tropical rainforest fauna of the Eungella Plateau in mid-eastern Queensland (see Schodde, 2006).